Filing this here, since I'm not sure if it's a configuration bug or upstream bug, and it's worth tracking either way.
Doxygen [says](http://www.stack.nl/~dimitri/doxygen/manual/config.html#cfg_inherit_docs), " If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the documentation from any documented member that it re-implements. The default value is: YES."
This is explicitly set in maintenance/Doxyfile, but I'm not sure if this is the same Doxyfile we use for doc.wikimedia.org (but hopefully it is).
It doesn't seem to work, e.g.:
* https://doc.wikimedia.org/mediawiki-core/master/php/classWikimedia_1_1Rdbms_1_1DatabasePostgres.html
The above is missing docs for methods like "select()"
.. which are inherited from Database, and shown at:
<https://doc.wikimedia.org/mediawiki-core/master/php/classWikimedia_1_1Rdbms_1_1Database.html#a3b03dd27f434aabfc8d2d639d1e5fa9a>